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7423939 |
Method for manufacturing magneto-optical recording medium
A method for manufacturing a magneto-optical recording medium in which reading of recorded information is performed through domain wall displacement in a reproduction layer is provided, in which...
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7376058 |
Optical information recording medium containing a plurality of recording layers provided with characteristics to achieve optimum recording conditions
An optical information recording medium according to the present invention includes a first information recording layer on which information is to be recorded by laser light; and a second...
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7235313 |
Magneto-optical recording medium, method of manufacturing magneto-optical recording medium, method of recording on magneto-optical recording medium, and method of reproduction from magneto-optical recording medium
A magneto-optical medium has a recording layer having a plurality of columns extending in a lamination direction, and a reproduction layer which is placed below the recording layer and which...
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7169454 |
Multi-stack optical data storage medium and use of such medium
A description is given of a multi-stack optical data storage medium ( 20 ) for rewritable recording using a focused radiation beam ( 30 ) entering through an entrance face ( 16 ) of the medium ( 20...
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7166346 |
Recording medium having super-resolution near-field structure and method and apparatus for reproducing the same
A read-only recording medium for achieving a carrier-to-noise ratio (CNR) using a super-resolution near-field structure (Super-RENS) on which information has been prerecorded includes a substrate...
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7090933 |
Magneto-optical recording medium including a soft magnetic layer, a protective layer and a silane coupling agent layer, in this order
The invention is a magneto-optical recording medium characterized by containing at least a soft magnetic layer, a protective layer, a resin layer having a servo pattern formed thereon, a reflecting...
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6944019 |
Integrity monitoring
A server blade may comprise a processor and a network interface. The network interface can be configured be connected to a network remote the server blade. The server blade may be configured detect...
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6934224 |
Optical recording medium/system with heat-dissipating and light reflecting layers
An optical recording medium and an optical recording and reproduction device including the same, wherein the optical recording medium comprises a substrate, a reflective layer formed on the...
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6893746 |
Magnetic recording medium with high thermal stability, method for producing the same, and magnetic recording apparatus
A magnetic recording medium comprises an information-recording film and a ferromagnetic film on a substrate. The information-recording film is composed of, for example, an amorphous ferrimagnetic...
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6879548 |
Optical recording medium and production method therefor
An optical recording medium is provided which has a reflective film, a lower dielectric film, a recording film and an upper dielectric film stacked in this order on a substrate, and is adapted to...
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6802073 |
Magneto-optical recording medium
Disclosed are magneto-optical recording media including at least a reflection layer, a recording layer and a dielectric layer laminated on a substrate in this order, wherein the thickness of the...
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6767697 |
Magneto-optical disk and method for producing same by initializing with a laser having a predetermined wavelength
A magneto-optical disk of the present invention includes a substrate and a recording layer disposed above the substrate, and reproduces an information signal by a DWDD system, using light incident...
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6760279 |
Magneto-optical storage apparatus having the relation between numerical aperture and recording medium
An object of the present invention is to provide a film-surface light-incident type magneto-optical recording medium which is used by means of an objective lens having a large NA value and is...
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6727007 |
Magneto-optical recording medium with reflective layer formed from two thin films possessing different surface tensions
A magneto-optical recording medium includes at least a reflective layer and a recording layer formed in this order on a substrate, in which record and reproduction of information are carried out by...
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6545955 |
Magneto-optic storage media and methods of reproducing the same
The magneto-optical storage medium includes: a reproduction layer exhibiting in-plane magnetization at room temperature and changing to perpendicular magnetization above a transition temperature...
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6463016 |
Magneto-optical storage medium having in-plane magnetized layers
A magneto-optical recording medium according to the present invention includes a reproducing layer having in-plane magnetization at room temperature and shifting to have perpendicular magnetization...
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6449221 |
Storage media for optical storage systems
Magneto-optical storage media designed for optical storage systems such as disk drives with optical flying heads. Dielectric layers are designed and implemented to maximize optical coupling between...
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6418089 |
REPRODUCTION APPARATUS AND REPRODUCTION METHOD PROVIDING REDUCED POWER CONSUMPTION, EVEN WHEN USING MAGNETICALLY INDUCED SUPER RESOLUTION (MSR), BY NOT APPLYING BIASED MAGNETIC FIELD TO RECORDING MEDIUM DURING STILL OPERATION
A bias magnet (magnetic head) is driven when data is read from an MSR disk. When data reading is awaited in a condition in which “reproduction still” is turned on, the bias magnet is not driven.
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6324131 |
Low glide magneto-optical recording medium
Low glide magneto-optical (LGMO) information storage and retrieval media having improved tribological properties when used in ultra-high density storage/retrieval devices employing very small head...
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6301200 |
Magneto-optical data storage disc with highly conductive, smooth reflector layer
An air-incident, optical data storage medium has a substrate, a reflector layer, a magneto-optic recording layer, and a protective layer. The reflector later has at least one of an electrical...
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6278668 |
Magneto-optical storage media
A magneto-optical storage medium includes: a reproduction layer exhibiting an in-plane magnetization state at room temperature and changing to a perpendicular magnetization state at a transition...
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6228482 |
Magneto-optic recording medium with reduced demagnetizing field threshold
A magneto-optic recording medium having a reduced demagnetizing field threshold incorporates a thin recording layer having a thickness of less than or equal to approximately 15 nm, and preferably...
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6132862 |
Magneto-optical recording medium
A magneto-optical recording medium comprising a light-transmitting substrate 1 on which a dielectric layer 2, a memory layer 3 having perpendicular magnetic anisotropy, an intermediate layer 4...
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6120921 |
Magneto-optical recording medium
The magneto-optical recording medium of the present invention has a triple-layer magnetic laminate on the surface side of the substrate, and the magnetic laminate comprises an amplification layer A...
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6088203 |
Three position magnetic head vertical movement device
A magnetic head vertical movement device for a magnetic-optical recording and/or reproducing apparatus for use with a disk cartridge, within which a magneto-optical disc is accommodated. The device...
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6077585 |
Optical recording medium and method of preparing same
An optical recording medium having at least one aluminum nitride and silicon nitride composite dielectric layer is provided. The amount of aluminum nitride in the dielectric layer, x, is more than...
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5930207 |
Magneto-optical recording medium having plural dielectric layers with different thermal conductivities
A magneto-optical recording medium provided with a first dielectric layer formed on a substrate, a second dielectric layer containing at least silicone nitride and formed on the first dielectric...
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5914198 |
Magneto-optical recording medium having dielectric layers with different indices of refraction
In a magneto-optical recording medium which comprises a transparent substrate, a first dielectric film, a magnetic film, a second dielectric film and a metal reflective film, formed successively...
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5858565 |
Magneto-optic compositionally modulated structure
A compositionally modulated magneto-optic structure includes a plurality of layers defining a layer stack, the overall layer stack including the elements Tb, Fe, and Pb; or the elements Tb, Co, and...
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5853872 |
Magneto-optical recording medium
A magneto-optical recording medium having, in the following order, a substrate, a magneto-optical recording layer having a Curie temperature of not less than 220° C., and a reflective layer mainly...
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5843570 |
Magneto-optical recording medium having large kerr rotational angle in short wavelength range
In a magneto-optical recording medium, a protective layer 14, a first magnetic layer 11 formed of a light rare earth element-heavy rare earth element-transition metal alloy, a second magnetic layer...
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5786078 |
Magneto-optical recording medium
A magneto-optical recording medium comprising a transparent substrate, a first dielectric layer on the substrate, a magneto-optical recording layer on the first dielectric layer and a metal...
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5777953 |
Arrangement of magneto-optical recording medium which capable of reproducing an individual bit
A magneto-optical recording medium is arranged so that (1) a first transparent dielectric layer, (2) a reproduction layer showing in-plane magnetization at room temperature while showing...
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5774430 |
Optical modulation overwritable magnetooptical recording medium
A magnetooptical recording medium of this invention includes a transparent substrate, a first magnetic layer composed chiefly of GdFeCo and serving as a reproducing layer, a second magnetic layer...
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5764600 |
Overwritable, high-density magneto-optical recording medium and recording/reproduction method therefor
A recording/reproduction method for recording or reproducing information using the magneto-optical recording medium, the magneto-optical recording medium comprising a first magnetic layer...
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5751670 |
Magneto-optical disk having variable thickness recording layer but adequate uniform reflectance value
A magneto-optical disc includes a disc-shaped transparent substrate, a recording layer formed on the substrate for extending from an inner diameter to nearly an outer most diameter, and an outer...
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5700567 |
Magneto-optical recording medium
In a magneto-optical recording medium comprising a first dielectric layer, a recording layer, a second dielectric layer, and a metal reflective layer stacked on a substrate, the second dielectric...
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5689479 |
Magneto-optical recording apparatus
In a magneto-optical recording apparatus, since a magnetic field is not generated in a data recording impossible area in order to lower power consumption, sufficient intensity of the magnetic field...
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5667862 |
Magneto-optical disk
A magneto-optical disk having a four-layer structure formed of a first protective dielectric layer, a recording magnetic layer, a second protective dielectric layer and a reflective metal layer is...
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5667887 |
Magneto-optical media
The present invention relates to a magneto-optical media. More particularly, the present invention relates to a device for assuring a high S/N ratio by controlling the optical phase difference of...
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5663936 |
Magneto-optic recording medium suited for mark edge recording system and having magnetic layer made of composition modulated material
A magneto-optic recording medium with a transparent substrate, a first dielectric layer above the transparent substrate, a magnetic layer above the first dielectric layer, a second dielectric layer...
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5661716 |
Magneto-optical recording medium and reproducing method therefor
A magneto-optical recording medium includes a substrate, a first magnetic layer formed on the substrate and constituted by a perpendicular magnetization film, a dielectric layer formed on the first...
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5648163 |
Magneto-optic recording medium having magneto-optic film layers separated by yttrium oxide
A magneto-optic recording medium including a transparent substrate and a magneto-optic stack provided thereon. The stack includes a plurality of magneto-optic film layers less than 10 nm thick....
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5631096 |
Magneto optical memory device
A magneto-optical memory device is provided with a base whereon a first magnetic film which exhibits in-plane magnetization at room temperature and exhibits perpendicular magnetization at above...
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5620792 |
Magneto-optic recording medium having constant reflectance over a range of wavelengths
A multilayer medium comprising a substrate, a composite dielectric layer, a magneto-optic recording layer, another dielectric layer, and a reflective layer. The composite dielectric layer has two...
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5599619 |
Write once magneto-optic media and system
An optical data storage medium is comprised of a data layer and a reference layer deposited onto a substrate. The data layer material is comprised of a transition metal rich rare earth-transition...
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5589282 |
Magneto-optical recording medium
Disclosed is a magneto-optical recording medium capable of high-density recording with low noise level and a high readout signal level. The recording medium of the invention consists of a...
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5577020 |
Magneto-optical disc with intermediate film layer between a recording film and a dielectric film
A magneto-optical disc is fabricated by forming a first dielectric film, a recording film of a rare earth element-transition element alloy, and a second dielectric film on a transparent substrate...
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5577021 |
Optical and magnetooptical recording medium having a low thermal conductivity dielectric layer
An optical recording medium comprises a transparent substrate, a first dielectric layer, a recording layer, a second dielectric layer and a reflecting layer stacked in this order, wherein said...
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5573847 |
Magneto-optic disk exhibiting a phase shift between plus and minus twelve degrees and a reflectivity between fifteen and twenty-five percent
An optimal structure for a quadrilayer magneto-optic data storage medium is described. The structure has superior characteristics of signal to noise, reflectivity, ellipticity, write sensitivity,...
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